Public bug reported: (neutron-server)[root@localhost /]# rpm -qa|egrep 'ovs|neutron' python3-ovsdbapp-1.6.0-1.el8.noarch openstack-neutron-common-17.0.0-1.el8.noarch openstack-neutron-vpnaas-17.0.0-2.el8.noarch python3-neutronclient-7.2.1-2.el8.noarch python3-neutron-17.0.0-1.el8.noarch python3-neutron-vpnaas-17.0.0-2.el8.noarch openstack-neutron-17.0.0-1.el8.noarch openstack-neutron-ml2-17.0.0-1.el8.noarch python3-neutron-lib-2.6.1-2.el8.noarch python3-neutron-dynamic-routing-17.0.0-2.el8.noarch
I found some error log in neutron-server.log: 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event [-] Unexpected exception in notify_loop: AttributeError: 'NoneType' object has no attribute 'db_find_rows' 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event Traceback (most recent call last): 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/ovsdbapp/event.py", line 159, in notify_loop 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event match.run(event, row, updates) 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py", line 347, in run 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event self.driver.delete_mac_binding_entries(row.external_ip) 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/mech_driver.py", line 1010, in delete_mac_binding_entries 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event mac_binds = self._sb_ovn.db_find_rows( 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event AttributeError: 'NoneType' object has no attribute 'db_find_rows' 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event [-] Unexpected exception in notify_loop: AttributeError: 'NoneType' object has no attribute 'db_find_rows' 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event Traceback (most recent call last): 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/ovsdbapp/event.py", line 159, in notify_loop 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event match.run(event, row, updates) 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py", line 347, in run 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event self.driver.delete_mac_binding_entries(row.external_ip) 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/mech_driver.py", line 1010, in delete_mac_binding_entries 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event mac_binds = self._sb_ovn.db_find_rows( 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event AttributeError: 'NoneType' object has no attribute 'db_find_rows' 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event how to fix this? ** Affects: networking-ovn Importance: Undecided Status: New ** Affects: neutron Importance: Undecided Status: New ** Tags: neutron-server ovn ** Also affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1914857 Title: AttributeError: 'NoneType' object has no attribute 'db_find_rows' Status in networking-ovn: New Status in neutron: New Bug description: (neutron-server)[root@localhost /]# rpm -qa|egrep 'ovs|neutron' python3-ovsdbapp-1.6.0-1.el8.noarch openstack-neutron-common-17.0.0-1.el8.noarch openstack-neutron-vpnaas-17.0.0-2.el8.noarch python3-neutronclient-7.2.1-2.el8.noarch python3-neutron-17.0.0-1.el8.noarch python3-neutron-vpnaas-17.0.0-2.el8.noarch openstack-neutron-17.0.0-1.el8.noarch openstack-neutron-ml2-17.0.0-1.el8.noarch python3-neutron-lib-2.6.1-2.el8.noarch python3-neutron-dynamic-routing-17.0.0-2.el8.noarch I found some error log in neutron-server.log: 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event [-] Unexpected exception in notify_loop: AttributeError: 'NoneType' object has no attribute 'db_find_rows' 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event Traceback (most recent call last): 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/ovsdbapp/event.py", line 159, in notify_loop 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event match.run(event, row, updates) 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py", line 347, in run 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event self.driver.delete_mac_binding_entries(row.external_ip) 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/mech_driver.py", line 1010, in delete_mac_binding_entries 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event mac_binds = self._sb_ovn.db_find_rows( 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event AttributeError: 'NoneType' object has no attribute 'db_find_rows' 2021-02-06 16:27:27.557 24 ERROR ovsdbapp.event 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event [-] Unexpected exception in notify_loop: AttributeError: 'NoneType' object has no attribute 'db_find_rows' 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event Traceback (most recent call last): 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/ovsdbapp/event.py", line 159, in notify_loop 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event match.run(event, row, updates) 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py", line 347, in run 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event self.driver.delete_mac_binding_entries(row.external_ip) 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event File "/usr/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/mech_driver.py", line 1010, in delete_mac_binding_entries 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event mac_binds = self._sb_ovn.db_find_rows( 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event AttributeError: 'NoneType' object has no attribute 'db_find_rows' 2021-02-06 16:27:27.558 24 ERROR ovsdbapp.event how to fix this? 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